Earth Hour invites residents in participating cities to switch off lights and non-essential electrical appliances for one hour at 8 p.m. to raise awareness of carbon emissions that cause global warming. “Climate change is truly a global issue and people around the world are demanding action” said Andy Ridley, Earth Hour’s executive director.
During last year’s Sydney event, restaurants used candles and other iconic building plunged into darkness including Golden Gate Bridge in San Francisco and the 553-meter CN Tower in Toronto. Essential lights, however, were kept on for safety reason. The event, according to Power provider energy Australia, cut electricity consumption by 10.2 percent.
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